Jump to content
SAU Community

Recommended Posts

Hello,

I have owned a bone stock 96' 4 door ECR33 with LESS THAN 20K miles for about a year now and I have finally decided to give it some upgrades. I bought a super clean set of R33 GTR wheels for a steal and I have decided to follow a stage 1 guide I have seen floating around on this forum and others. I have found everything I want EXCEPT an exhaust. I want to know what I should run from the trubo allllll the way back. I havent really worked on a car in this manner before so please be specific. Any suggestions? I also want to know what measures I should take to avoid common problems with my engine. I have heard the rb25det has an oil issue but i dont know much about it or other problems. 

Thank you from Okinawa, Japan

Link to comment
https://www.sau.com.au/forums/topic/474665-96-ecr33-stage-1-future-proofing/
Share on other sites

Ideally you want a full exhaust.  So you want a nice big dump pipe (off the turbo), big 4" or 5" cat with 200cpi (if you want it to do anything at all) or 100 cpi (if you want it to do almost nothing at all but look pretty legal) or no cat at all if you give no fark and don't mind cleaning the soot off the bumper.  The exhaust should then be 3" or 3.5" with a straight through centre muffler and a big rear muffler.  3" if you future power goals are not super high, 3.5" if you're aiming for lots of power.

There is an entire thread on here (search for "oil control") with hundreds of pages.  Start reading at the beginning, then you can actually skip a lot of it and only read the last 20 pages or so.  You will see posts towards the end guiding you to where the useful summary info starts.

1 hour ago, GTSBoy said:

Ideally you want a full exhaust.  So you want a nice big dump pipe (off the turbo), big 4" or 5" cat with 200cpi (if you want it to do anything at all) or 100 cpi (if you want it to do almost nothing at all but look pretty legal) or no cat at all if you give no fark and don't mind cleaning the soot off the bumper.  The exhaust should then be 3" or 3.5" with a straight through centre muffler and a big rear muffler.  3" if you future power goals are not super high, 3.5" if you're aiming for lots of power.

There is an entire thread on here (search for "oil control") with hundreds of pages.  Start reading at the beginning, then you can actually skip a lot of it and only read the last 20 pages or so.  You will see posts towards the end guiding you to where the useful summary info starts.

Awesome! Thanks for the advice. Any recommended manufacturers? If you're running this setup what do you have?

29 minutes ago, KiwiRS4T said:

And watch out for Japanese brand name exhausts - many of them have 3in inlets and outlets but narrow down to 2 1/2 in just before the outlet.

Thanks for the tip. I'll keep an eye out

44 minutes ago, samw/skyline said:

Awesome! Thanks for the advice. Any recommended manufacturers? If you're running this setup what do you have?

I'm only making ~190rwkW, so don't need a super exhaust.  I just have a no-name 3" Jap exhaust (that doesn't have the 2.5" restriction).  If I was to put a new exhaust on my car, to meet some enhanced power making desires, I would not buy an off the shelf "brand name" exhaust.  I would get it made locally to my specs with mufflers of my choosing.

Unlike APR you can go from Stage 1 to Stage 3.5 without the need to retune between stages.

Invest a Link or Haltech or ECU Master get your car running really well, setup closed loop o2 feedback and boost control via  3-port MAC valve.

The stock ECU is the restriction in most cases.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Thanks Duncan, that's the best info I've read. Furthermore after learning about the PCM programming side controlling the factory boost solenoid, the purpose of the solenoid is to "bleed" boost when pin 25 is earthed, thus allowing spring pressure in the wastegate actuator to overcome diaphragm boost pressure, thus closing or reducing the position of the wastegate flap creating more boost as the turbo is able to spin faster. It's pretty cool to see a designated Pill to do exactly this, would have liked to have seen it with a tiny filter over the end for those moments in vacuum.  The constant bleed pill has now been removed completely from the system and solenoid boost control has been restored once again.   Case closed 😂
    • The wideband reading is meaningless if it's not running. Why are you using shitty old sidefeeds on any engine, let alone a Neo? What manifold and fuel rail are you using to achieve that? Beyond that, can't help you with AEM stuff as I've never been their ECU/CAS combo.
    • Manual boost controllers (where a little of the boost was bled off) were quite common back in the day, because they were cheap and easy. Generally they had a manual adjustment screw rather than being fixed like yours. Down side is they always bleed boost, not just when you want them to so an electronic boost controller that uses a solenoid will have less lag.
    • Hello , im new here and i have A31 home build  RB25det neo stock eng / turbo  aem ems 2 blue connector  aem 3.5 map aem cas disk aem wideband connected to ecu  355 lph pump 550 nismo yellow injectors side feed aftermarket regulator  and won’t start with base aem tuner basic tune eventually flipped cas 180 degree so it triggers on correct stroke not in exhaust cycle  Now it won’t start Wideband reads 10 and 11 at lowest fuel setting  and will share calibrations soon for aem tuner i think something is wrong in aem tuner    please if you have any information, am very grateful         
    • Legend. I ended up finding the facebook account of the owner of the first car i sent but sadly he deactivated the account. I think you’re right in saying it’s some sort of well done custom job. Really appreciate your help anyways.
×
×
  • Create New...